Context: In nuxt 2.13, after the introduction of full-static mode, we introduced a new build-time optimization to reduce CI time (static generation) by avoiding a rebuild if project hashes were not different but only a new prerendering was needed (#7712 - lastest impl)

Use cases for Nuxt 3:

• Smart rebuild for nuxi generate
• Auto cleanup cache directories on hash changes (nuxt/framework#6668, feat(nuxi): auto cleanup with project manifest changes framework#6672)
• Use for test-utils setup
• Optimize build time speed with a cache (or other settings) #23392